Home / 814,141.52-1,221,321.64-308,889.85

Finding the Fourth Proportional to 814,141.52, 1,221,321.64 and 308,889.85

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Solution

The fourth proportional to 814,141.52, 1,221,321.64 and 308,889.85 is: 463,376.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,141.52 : 1,221,321.64 = 308,889.85 : x
  2. Step 2: Convert to fraction form
    814,141.52/1,221,321.64 = 308,889.85/x
  3. Step 3: Cross multiply
    814,141.52x = 1,221,321.64 × 308,889.85
  4. Step 4: Simplify right side
    814,141.52x = 377,253,854,355.83
  5. Step 5: Solve for x
    x = 377,253,854,355.83/814,141.52
  6. Step 6: Final answer
    x = 463,376.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.